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Takai N, Ueda T, Ishii T, Kira N, Nishida M, Nasu K, Narahara H.Takai N, et al.Tumour Biol. 2011 Jun;32(3):569-74. doi: 10.1007/s13277-010-0152-3. Epub 2011 Jan 8.Tumour Biol. 2011.PMID: 21213097Retracted.
Takai N, Ueda T, Nishida M, Nasu K, Narahara H.Takai N, et al.Mol Med Rep. 2010 May-Jun;3(3):515-8. doi: 10.3892/mmr_00000290.Mol Med Rep. 2010.PMID: 21472272
Takai N, Ueda T, Ishii T, Kira N, Nishida M, Nishida Y, Nasu K, Narahara H.Takai N, et al.Int J Gynecol Cancer. 2011 Aug;21(6):1105-9. doi: 10.1097/IGC.0b013e318218730e.Int J Gynecol Cancer. 2011.PMID: 21633303Retracted.
Takai N, Ueda T, Kira N, Ishii T, Yoshida T, Koga S, Nishida M, Nasu K, Narahara H.Takai N, et al.Tumour Biol. 2012 Aug;33(4):1053-8. doi: 10.1007/s13277-012-0339-x. Epub 2012 Jan 31.Tumour Biol. 2012.PMID: 22290426Retracted.
Takai N, Kira N, Ishii T, Yoshida T, Nishida M, Nishida Y, Nasu K, Takano M, Midori H, Koga S, Narahara H.Takai N, et al.Tumour Biol. 2012 Oct;33(5):1505-10. doi: 10.1007/s13277-012-0401-8. Epub 2012 Apr 20.Tumour Biol. 2012.PMID: 22528948Retracted.